Depends. If you want to be sure to have access to
.config/System.map/whatever even if at boot time it was sent to you in
morse code through supernovaes explosions, you can't do anything but
keeping the data in memory.
If you only want to confirm that the kernel image (to which has been
appended all the information you want) you see lying there on the disk
in the booted one, simply add a MD5 checksum[1] in the file loaded
(not computed) at boot time and accessible through a system call or
/proc.
OG.
[1] write a special zone in the file with 16 zeroes, compute the hash,
write the result in the zone.
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